Cabin Window Reflective Heat Screens

CaspersCruiser

Well-known member
Joined
May 11, 2016
Messages
919
Fluid Motion Model
R-27 Classic
Hull Identification Number
FMLT2709G112
Vessel Name
Cookie
MMSI Number
368203460
Summer is around the corner and soon there will be posts about how to make of the most of the air conditioning on our boats. On my 2012 R27 there are only two air conditioning vents and the duct work for the port side vent was partially crushed during assembly of my boat at the factory so I have to make the most of what conditioned air makes it to the cabin.

There are lots of pilots on Tugnuts and I’m sure they’re familiar with my solution to air conditioning happiness— reflective heat screens. They’re used in airplanes on the ground to mitigate cockpit solar heating and to protect electronics and upholstery from damaging direct sunlight.

As I did for my airplanes, I made my own heat screens for my boat. It took a while. There are a whole lot more windows on a Ranger Tug than on a small airplane!

To make my heat screens, I used Reflectix brand reflective bubble insulation I bought at Lowe’s:

https://www.reflectixinc.com/products/d ... nsulation/

I used this type of Velcro. It comes in black or white. I used black on the window frames and white on the overhead hatch frames:

https://www.velcro.com/products/industr ... olor=black

I used newspaper sheets to make patterns of the window and hatch frames, traced those onto the Reflectix and cut it with scissors. I cut the nap side of the black Velcro strips in half to make them 1/2” wide. It fits the window frame perfectly. For the overhead hatches, I used the Velcro full width. On the heat screens, I used the full width of the Velcro hook side strip.

Here’s what they look like installed:



I used my heat screens all last summer and they’re very effective. When we’re using the A/C, we only put screens in the windows that are facing the sun and on the overhead hatches. As the day progresses, we put up and take down the screens as the sun moves around the boat. When the boat is not occupied, we put up all the screens. They keep the interior temperature within about 20° of the outside temperature and keep prying eyes from seeing what’s in the boat. At night we use the screens for privacy.

On the cabin door, we use the canvas screen that came with the boat.

The downside to these screens is storing them when they’re not in use. We put the smaller screens inside the two largest and fold them over and put them in the cave under the table.
 
On mine for the hatches in the roof I just put between the screen and the glass. The screen holds them in fine. You are correct it makes a huge difference .. Keeps the light out of the state room as well if you happen to be under a light or require a nap mid day 🙂
 
When we’re NOT using the A/C and relying on ventilation from the windows and hatches, we still install some of the heat screens to mitigate solar heating.
 
Living in south Florida we have to deal with the heat most of the year so here’s what we did to Gratitude. The unit in the R27 is a 16000 BTU unit but it only has two small outlet vents hidden by the captain seat and the admirals seat. I put a Y inline on the port side vent and installed a large outlet vent under the microwave, this helped with the airflow big time. Next I had Sunbrella covers made for all the overhead hatches and had all the windows tinted with 20% film except the windshield windows. Just these couple of easy fixes made her way more comfortable in the summer. We do run the generator and A/C underway so this works for us.

Tim and Donna
Gratitude
 
I’ve seen Tim’s set up and it’s really, really nice, especially the extra vent off the port side “Y”.
 
Thank you Bill for the nice compliment about Gratitude. If anyone is looking to add a vent to their R27 A/C system I ordered the kit from Defender supply. The part number is FCF000119A, Defender item # 901549. I had to order the insulated duct separately. This a pretty straight forward project but you’ll be spending time in the dark end of the cave so I recommend doing this in the winter not the summer like I did.

Tim
Gratitude
 
I guess I need to make something clear: I only use the reflective heat screens when we’re anchored or at the dock and NOT under way. Graditude’s tinting solution is the only solar heating mitigation strategy that would work under way.
 
Nicely done. Do you remember the part number for the duct work? Where did you cut in to install the Y connector?

Thanks in advance
Gary


Boatdreamer":1zeleals said:
Thank you Bill for the nice compliment about Gratitude. If anyone is looking to add a vent to their R27 A/C system I ordered the kit from Defender supply. The part number is FCF000119A, Defender item # 901549. I had to order the insulated duct separately. This a pretty straight forward project but you’ll be spending time in the dark end of the cave so I recommend doing this in the winter not the summer like I did.

Tim
Gratitude
 
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